Home / 156,159.10-215,483.59-90,737.73

Finding the Fourth Proportional to 156,159.10, 215,483.59 and 90,737.73

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Solution

The fourth proportional to 156,159.10, 215,483.59 and 90,737.73 is: 125,208.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,159.10 : 215,483.59 = 90,737.73 : x
  2. Step 2: Convert to fraction form
    156,159.10/215,483.59 = 90,737.73/x
  3. Step 3: Cross multiply
    156,159.10x = 215,483.59 × 90,737.73
  4. Step 4: Simplify right side
    156,159.10x = 19,552,491,922.27
  5. Step 5: Solve for x
    x = 19,552,491,922.27/156,159.10
  6. Step 6: Final answer
    x = 125,208.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.